Malicious PDF — malware analysis report

Static analysis result for SHA-256 449b76ca359df02f…

MALICIOUS

PDF

41.1 KB Created: 2020-08-20 04:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc6fd56b56898fdd4ebd6fe8b7759e9f SHA-1: 3d3594697ab1fd998301ecc774521c62dd4d66cf SHA-256: 449b76ca359df02f2d9d540a5669087c91aa6b3269eebea8e2ffa26a50d98b6c
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF contains a large number of embedded links, with a critical heuristic firing indicating a link farm designed to direct users to malicious infrastructure. One of the primary URLs, 'https://ttraff.ru/pify?keyword=badlands+halsey+all+songs', is flagged as malicious. The document body also contains text that appears to be a lure for callback phishing or a tech-support scam, further supporting the malicious intent.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=badlands+halsey+all+songs
    • http://files.williamsburgrec.com/uploads/1/3/2/6/132682745/tagogumolizim_fofuzipupi.pdf
    • http://files.wehelpmoving.ca/uploads/1/3/1/1/131164007/7b2e487fb617.pdf
    • http://files.steigerclass.com/uploads/1/3/1/4/131406947/fuvuposawaxiri.pdf
    • http://files.nnhst2.org/uploads/1/3/1/3/131381288/tadivixufofexakulo.pdf
    • http://benuzo.zoesherphotography.com/uploads/1/3/2/6/132682137/4b18001455d8b.pdf
    • https://cdn.shopify.com/s/files/1/0436/3019/8937/files/32073600761.pdf
    • https://cdn.shopify.com/s/files/1/0450/3266/9334/files/normal_blood_pressure_by_age.pdf
    • https://cdn.shopify.com/s/files/1/0433/8280/0542/files/gafuborevedesodem.pdf
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/html_side_menu_bar_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/9349/8787/files/adagio_in_g_minor_albinoni.pdf
    • https://cdn.shopify.com/s/files/1/0435/0889/1807/files/abelian_group_example_problems.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/87088900649.pdf
    • https://cdn.shopify.com/s/files/1/0434/4066/8838/files/37536834166.pdf
    • https://cdn.shopify.com/s/files/1/0433/5730/7039/files/duwerenoniv.pdf
    • https://cdn.shopify.com/s/files/1/0430/8071/2346/files/wisovi.pdf
    • https://cdn.shopify.com/s/files/1/0436/4143/8366/files/angular_momentum_in_quantum_mechanics_a._r._edmonds.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062f1.bin
7cef51d263b43be2dc9c71de74765a24bf18eaa8ba3cdba3e69768778933421a
pdf-font-stream PDF embedded font (sfnt) at offset 0x62F1 5140 bytes
font_01_sfnt_off00007470.bin
54c2fefe662d35fc2cc634ed2bbd7ba16830e312c9aae6608fda22c5654c2aac
pdf-font-stream PDF embedded font (sfnt) at offset 0x7470 10316 bytes